Growing community of inventors

Chicago, IL, United States of America

Roger V Jacobsen

Average Co-Inventor Count = 1.20

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 49

Roger V JacobsenGary A Jacobsen (1 patent)Roger V JacobsenRoger V Jacobsen (3 patents)Gary A JacobsenGary A Jacobsen (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (3 from 832,812 patents)


3 patents:

1. 5181745 - Printed image creating the perception of depth

2. 5152090 - Pivotless wheel indicia display device

3. 4958455 - Pivotless wheel indicia display device

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as of
12/19/2025
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